COMP Cams 11-408-8 Details

Hydraulic Roller-Strong torque, good mileage, RV and towing, use in stock applications.

Specifications:

Exhaust Valve Lift (in.)

0.51

Intake Valve Lift (in.)

0.510

RPM Range

1000-5000

Int. Duration @ .050 in. (Deg)

206

Exh. Duration @ .050 in. (Deg)

212

Int. Duration Advertised (Deg)

258

Exh. Duration Advertised (Deg)

264

Engine Make/Size

Chevy Big Block (396-454)

Lifter Type

Hydraulic Roller

Usage

Street/Performance

Advertised Duration

258 int./264 exh.

Advertised Exhaust Duration

264

Advertised Intake Duration

258

Basic Operating RPM Range

1,000-5,000

Cam Style

Hydraulic roller tappet

Computer-Controlled Compatible

No

Duration at 050 inch Lift

206 int./212 exh.

Exhaust Duration at 050 inch Lift

212

Exhaust Valve Lift with Factory Rocker Arm Ratio (

0.51

Grind Number

XR258HR

Intake Duration at 050 inch Lift

206

Intake Valve Lift with Factory Rocker Arm Ratio (i

0.51

Quantity

Sold individually

Valve Lift with Factory Rocker Arm Ratio

0.510 int./0.510 exh.

Valve Springs Required

Yes

Lobe Separation (Deg)

110

Manufacturer's Part Number:

11-408-8

The Leading Edge of Valve Train Technology

Comp Cams Xtreme Energy series can be used in any street or street/strip application where both throttle response and top-end horsepower is desired. These camshafts are designed to take advantage of the latest improvements in valve train components and the newest developments in camshaft design. Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration @ .050'' lift, while delivering increased engine vacuum. We do not recommend the use of stock valve train components with these camshafts due to the aggressive lobe designs.

Some parts are not legal for use in California or other states with similar laws / regulations

Motor Vehicles

WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

Tools:

WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

Electrical Cords

WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.